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Data Recording (data + recording)
Selected AbstractsThe biogeography of prediction error: why does the introduced range of the fire ant over-predict its native range?GLOBAL ECOLOGY, Issue 1 2007Matthew C. Fitzpatrick ABSTRACT Aim, The use of species distribution models (SDMs) to predict biological invasions is a rapidly developing area of ecology. However, most studies investigating SDMs typically ignore prediction errors and instead focus on regions where native distributions correctly predict invaded ranges. We investigated the ecological significance of prediction errors using reciprocal comparisons between the predicted invaded and native range of the red imported fire ant (Solenopsis invicta) (hereafter called the fire ant). We questioned whether fire ants occupy similar environments in their native and introduced range, how the environments that fire ants occupy in their introduced range changed through time relative to their native range, and where fire ant propagules are likely to have originated. Location, We developed models for South America and the conterminous United States (US) of America. Methods, We developed models using the Genetic Algorithm for Rule-set Prediction (GARP) and 12 environmental layers. Occurrence data from the native range in South America were used to predict the introduced range in the US and vice versa. Further, time-series data recording the invasion of fire ants in the US were used to predict the native range. Results, Native range occurrences under-predicted the invasive potential of fire ants, whereas occurrence data from the US over-predicted the southern boundary of the native range. Secondly, introduced fire ants initially established in environments similar to those in their native range, but subsequently invaded harsher environments. Time-series data suggest that fire ant propagules originated near the southern limit of their native range. Conclusions, Our findings suggest that fire ants from a peripheral native population established in an environment similar to their native environment, and then ultimately expanded into environments in which they are not found in their native range. We argue that reciprocal comparisons between predicted native and invaded ranges will facilitate a better understanding of the biogeography of invasive and native species and of the role of SDMs in predicting future distributions. [source] Electronic and Magnetic Properties of Ligand-Free FePt Nanoparticles,ADVANCED MATERIALS, Issue 5 2005H.-G. Boyen Ligand-free FePt nanoparticles are prepared in densely packed arrays (see Figure) under ultrahigh vacuum conditions, in which oxygen and hydrogen plasmas are used to remove the organic shells that are present after particle synthesis. The electronic structure and magnetic properties of the "bare", face-centered-cubic FePt particles are presented. Applications in high-density magnetic data recording are foreseen. [source] A repurposed tool: the Programme Evaluation SOAP NoteMEDICAL EDUCATION, Issue 3 2010Christopher B Reznich Medical Education 2010:44: 298,305 Context, Doctors have used the subjective,objective,assessment,plan (SOAP) note format to organise data about patient problems and create plans to address each of them. We retooled this into the ,Programme Evaluation SOAP Note', which serves to broaden the clinician faculty member's perspective on programme evaluation to include the curriculum and the system, as well as students. Methods, The SOAP Note was chosen as the method for data recording because of its familiarity to clinician-educators and its strengths as a representation of a clinical problem-solving process with elements analogous to educational programme evaluation. We pilot-tested the Programme Evaluation SOAP Note to organise faculty members' interpretations of integrated student performances during the Year 3 patient care skills objective structured clinical examination (OSCE). Results, Eight community clerkship directors and lead clerkship faculty members participated as observers in the 2007 gateway examination and completed the Programme Evaluation SOAP Note. Problems with the curriculum and system far outnumbered problems identified with students. Conclusions, Using the Programme Evaluation SOAP Note, clerkship leaders developed expanded lists of ,differential diagnoses' that could explain possible learner performance inadequacies in terms of system, curriculum and learner problems. This has informed programme improvement efforts currently underway. We plan to continue using the Programme Evaluation SOAP Note for ongoing programme improvement. [source] Quantitative ASL muscle perfusion imaging using a FAIR-TrueFISP technique at 3.0,TNMR IN BIOMEDICINE, Issue 1 2006Andreas Boss Abstract The feasibility of muscle perfusion imaging with diagnostic image quality was demonstrated using the FAIR-TrueFISP arterial spin labeling technique on a clinical 3.0,T whole-body scanner. In eight healthy volunteers (24 to 42 years old), quantitative perfusion maps of the forearm musculature were acquired before and after intense exercise. All measurements were carried out in a 3.0,T whole-body MR unit in combination with an eight-channel head coil. Pulsed arterial spin labeling and data recording were performed with an adapted FAIR-TrueFISP technique and quantitative perfusion maps were calculated on a pixel-by-pixel basis by means of the extended Bloch equations. Perfusion images with an in-plane resolution of 1,mm showed no significant distortions or blurring. Perfusion,time curves could be recorded with a temporal resolution of 6.4,s. Maximum perfusion in the musculature was found ,2,min after exercise, reaching values of up to 220,mL/min per 100,g of tissue with good delineation between the active muscles and the musculature not involved in the exercise. In conclusion, the TrueFISP pulsed arterial spin labeling technique allows patient-friendly assessment of muscular perfusion in a clinical whole-body scanner. Copyright © 2006 John Wiley & Sons, Ltd. [source] Issues in monitoring medication effects in the classroomPSYCHOLOGY IN THE SCHOOLS, Issue 9 2009Laura Anderson The task of medication monitoring in the schools has increased for school psychologists, yet there is little research specific to pediatric psychoactive medication. The current article reviews issues pertinent to school-based medication monitoring. Feasibility, acceptability, and perception of effectiveness are reviewed as fundamental considerations before implementing a medication-monitoring plan in the schools. The importance of individualization, ecological implementation, and development of socially valid objectives is stressed along with the need for additional research, tools, and measures in this area. Practical considerations for school psychologists include discussion of parental consent and confidentiality, multilevel assessment and monitoring, data recording, and determining clinical significance. © 2009 Wiley Periodicals, Inc. [source] Evidence supports adjuvant radiotherapy in selected patients with rectal cancerANZ JOURNAL OF SURGERY, Issue 3 2004Peter Gibbs Background: Much recent data have been published on the risk of local recurrence (LR) following curative surgery for rectal cancer and the impact of adjuvant radiation therapy (RT). With improvements in surgical technique apparently reducing the risk of LR, the relevance of older data upon which the current recommendations for adjuvant RT are based has been questioned. Methods: A focused review was undertaken of the published literature on the risk of LR following surgery for rectal cancer and the impact of adjuvant radiation. In particular the authors attempt to define how accurately the risk for an individual patient can be predicted, trends in reported LR rates over the time period of randomized trials, and the relevance of changing surgical and RT techniques. Results: Many of the perceived differences in published results can be explained by variations in study entry criteria, length of follow up and data recording. Comparisons between studies are most accurate when defined subsets of patients, such as those with stage III disease, followed for the same period of time, are considered. In parallel with improvements in surgical technique, which may have reduced the risk of LR, modifications to RT delivery have resulted in recent series not reporting an increased mortality in those patients treated with modern RT techniques. Conclusion: All of the available evidence supports the use of adjuvant RT in selected patients with rectal cancer. Ongoing studies will better define individual patient risk and the risk,benefit ratio of adjuvant RT. [source] Measurement of linear polarization in the H, line in solar flaresASTRONOMISCHE NACHRICHTEN, Issue 4 2003Article first published online: 28 MAY 200, P. Kotr Abstract Large solar telescopes built at places with a quite excellent seeing, equipped with a sophisticated optics and control system are too expensive and unique to be used currently in hunting of sudden and short-lasting activity events, e.g. flares and eruptive prominences. For a systematic observation of selected kinds of active phenomena it is still necessary to use smaller or medium-sized telescopes equipped with a special setup of devices. Detection of linear polarization in the H, line emitted in a flare seems to be just a right task and delicate matter for such a systematic observation. This kind of polarization is supposed to be generated by particle beams accelerated in thke corona and directed towards denser chromospheric layers where the particle beams deposit their kinetic energy. As the accelerated particle beams possess a preferred direction of velocity they can produce a linearly polarized light. However, the occurrence of the accelerated particle beams and the related linear polarization in the H, line may have a tendency to appear: 1) at the early beginning of a flare 2) in pulses lasting just a few seconds or even less. To measure the linear polarization in flares regularly we have built an additional branch in the Ond,ejov multichannel flare spectrograph. In this paper we describe the optical system, the detectors, the method used for data recording and reduction and we also briefly discuss the first results. [source] Trends in the incidence of ectopic pregnancy in England and Wales from 1966 to 1996BJOG : AN INTERNATIONAL JOURNAL OF OBSTETRICS & GYNAECOLOGY, Issue 3 2000M. Rajkhowa Subspecialist Trainee (Reproductive Medicine) Objective To examine the incidence of ectopic pregnancy over the period 1966 to 1996. Setting England and Wales. Design Use of official statistics on hospital discharges, maternities, legal abortions and estimated populations of women aged 15,44 years. Main outcome measures Incidence rates of ectopic pregnancies. Results Between 1966 to 1970 and 1994 to 1996 the recorded incidence increased 4.5-fold from 3.45 to 15.5 per 1000 maternities, 3.8-fold from 3.25 to 12.4 per 1000 pregnancies and 3.1-fold from 30.2 to 94.8 per 100,000 women aged 15,44. The rate of increase was not uniform. Incidence approximately doubled between 1966 and 1985, when the official data collection system changed. By 1989, when data from the new system became available, there had been a further almost doubling of recorded incidence. Subsequently, the upward trend appears to have continued until 1991 to 1992 and has remained stable in the last four years of the study. The trends were similar in each of three 10-year age groups. Conclusions The recorded incidence of ectopic pregnancy has increased markedly over the last three decades. This may be partly due to artefacts of data recording and more sensitive diagnostic tests, but it is likely that the actual incidence has increased, probably due to a sexually transmitted agent. [source] | ||||||||||